Lock for doors of cars, &amp;c.



PATENTED SEPT. 11, 1906.

L. NEYRAT. I LOOK FOR DOORS 0F CARS, aw.

APPLICATION FILED NOV. 16, 1904.

- 4 SHEETS-SHEET 1.

Wgz nesses NO- 830,520. 4 PATENTED SEPT. 11, 1906.

L. NEYRAT.

L OGK FOR DOORS 0F CARS, 6w. APPLIOATION FILED 1107.16. 1904.

4 SHEETS-SHEET 2.

INVENTOR,

W ITNESSES; Lo NEYRAT,

Tn: Hollis PITIRS ca, \usnmamu, n. c.

PATENTED SEPT. I1, 1906 L. NEYRAT. LOOK FOR DOORS OF CARS, 8w.

APPLIUATION IILED NOV. 16, 1904.

4 SHEBTS-SHEET 4.

INVENTOR, Y Logif''RAT,

At'tQr-YLQB wrrnas'sas To ail whom it may concern:

UNITED STATES PATENT, ()FFIOE.

\ 130 NEYRAT, or PERIGUEUX, FRANCE.

LOOK FOR DOORS OF CARS, 81.0.

Specification of Letters Patent.

\ Patented Sept. 11, 1906.

Application filed November 16,1904. Serial No. 232,956.

Be it known that I, LIIO NEYRAT, a citizen of the Republic of France, residing at Pri- I 7 gueux, 7 Cours Montaigne, Dordogne, in the Republic of France, have invented certain new and useful Improvements in Looks for the Doors of Cars, &c., of which the following is a specification.

This invention relates to a lock, especially for the doors of cars and other kinds of vehicles. The said lock comprises two bolts, one of which is positively or directly operated by the door knob or knobs, being shown mounted on the axle of the inner and outer controlling-handles, and the other of which, having a beveled head, is closed by a spring and automatically opened by means of a le+ ver when the first-named bolt is moved to open position.

In the accompanying drawings, which show, by way of example, two forms in which the present invention may be carried out, Figures 1 to 4 illustrate a lock the bolt of which, positively connected with the controlling-handles, is to be opened and closed by hand. Figs. 5 to 7 illustrate a similar lock in which the bolt is adapted to be closed by a spring and to be opened by hand. Fig. 1 is means for holding the lock-bolt in close an elevation illustrating the inner side of a car, showing the lock in its closed position. Fig. 2 is a like view showing the parts at the outer side of a car, Fig. 3 is a sectional view through part of the door-frame, showing the p sition, Fig. 3 is an edge view of part of the door, showing the relative positions of the lock-bolt and the latch-bolt and of the inner and outer handles. Fig. 4 is a side view of the frame which supports the lock-bolt, the latch-bolt, and the connections between the same; and Fig. 4 is a like view with the lockbolt retracted. Fig. 5 is a rear view of another form of lock embodying my invention secured to a frame. Fig. 6 is a side view thereof with the look-bolt retracted, and Fig. 6 is a like view with the lock-boltadvanced. Fig. 7 is a cross-sectional view through a door and door-frame, showing the lock of Fig. 5 about to be engaged with a suitable keeper; and Fig. 7 a is a like view showing the lock engaged with the keeper.

In Figs. 1 and 2 a designates a spindle passing through the door I) and through the lockframe mortised therein, (see Figs. 4 and 6 and on which spindle is fixed a handle or inner lever c and an outer handle (Z. Integral with the lever c or fixed to or movable by the same is a finger e, which is capable of movement to and from a position across the front of the door-case f. It will be obvious that upon turning either of the handles 61 or c the finger 6 will be correspondingly moved downwardly, as shown in Fig. 1, or upwardly, as shown in Fig. 3 The downward position referred to is also shown in Figs. 7 and 7 Fitted to the spindle a is a plate provided at one end with the lock-bolt j and recessed at another part to provide the hooks 1 and 2, Fig. 4. As the spindle is moved the bolt y' will be projected from an opening in front plate p of the lock-frame or retracted thereinto. The front plate p also carries supports (generally designated 0) for the spindle and the bolt-plate. The front plate p is also provided at its rear side with a bracket 9, and a latchbolt 1' is adapted to slide in an opening in said bracket and in an opening through the front plate p, being provided at the front end with a bevel-head k and at its rear end with a plate t, having its top edge slightly above the top edge of the bracket. position the latch-bolt is shown by solid lines inFigs. 4 and 4*, but will be retracted by contact with the door-case or otherwise, as shown by dotted lines in Fig. 4, against the spring 8. At the rear of the front plate p I provide one or more plates u and loosely pivot thereto a lever 12, having an upper arm whose rounded extremity isadapted to be engaged by the hooks 1 and 2 alternately and to lie in the recess of the lock-plate. The lower arm of the lever e carries a dog as,pivoted at 3 to the lever and provided at its outer end with the squared or flat face 4.

Upon looking at Figs. 4 and 4 it will be seen that the latch-bolt 7c is free to move inwardly or retracted at any time independently of the position of other parts of the lock. By means of the lever 02 the latch-bolt is also put under the control of the handles cl and a when manipulated to retract the lock-bolt j. It will be obvious that when the locking-bolt j is advanced (in looking position) the upper end of lever 2) will be thrown backward by engagement of the hook 2 with the rounded upper end of the lever, as shown in Fig. 4, and the lower end of the lever will be so far advanced as to have the squared end or face 4 In its advanced of the dog 00 in engagement with that edge of the part t of the latch-bolt which projects above the upper edge of the bracket q. U on partial rotation of the spindle a (as a resu t of moving either handle 0 or handle d) the attached plate is correspondingly moved and the lock bolt withdrawn. During the movement of the plate-the hook 1 engages the rounded upper end of the lever v, and as the result of the continuation of movement of such plate the lever is rocked, with the dog as meanwhile engaging the part t of the latchbolt, and thereby retracting the latter and continuing such retraction, as shown by dotted lines in Fig. 4, until the lower arm of the lever '0 has moved down sufficiently far to have the pivoted dog as raised by engagement with the upper edge of the bracket g out of touch with the part t of the latchbolt, whereupon the latch-bolt will return under the influence of the spring 8 to advanced position, as shown in Fig. 4*. Thus whenever the lock-bolt is retracted the latch-bolt will also be retracted. Upon completion of the unlocking operation of the bolt 3' the door I) will be partially opened by the elasticity of the packing between the door and the door frame or by slight pull upon the handle during the unlocking operation. Therefore when the latch-bolt 7c is released and has advanced under these circumstances it will not again enter the keeper a, (see Fig. 1,) and thereby maintain the door locked, but will be free of the door-case, allowing the door to be thereafter opened to any extent. The door being open and the lock-bolt j being in the open position shown in Figs. 3 and 4 the latch-bolt 7c is, as ex lained, free to act by means of the bevel of the beveled head and the spring 8 to lock the door automatically when the latter is pushed or closed, and, in fact, when the door is thus pushed with sufficient force to overcome the elasticity hereinbefore mentioned the bolt k becomes automatically secured under the action of the spring sin the keeper n and the door can no longer be unintentionally opened. Thereafter the latch-bolt 7c cannot be operated until the lock-bolt has been advanced by turning the spindle or shaft (1, causing the tooth 2 to push back the nose w of the lever 1), so that the pawl or dog ac, moved backward, falls again between the lock-plate p and the projecting part of t, thus requiring the parts to always be in or bereturned to locking position before the latch-bolt is can be unlocked.

I have hereinbefore spoken of the fingerpiece e operating in unison with the handles 0 and d. The object of employing such piece e is to have it engaged by a cooperating part, and thereby prevent the unintentional operation of the look, as well as to also render more certain the security thereof. The arrangement which I have shown comprises a pin which permits the finger-piece to ride past when the locking is being effected, but

engages and prevents the return of said finger (and consequently detains the lock-bolt j in looking position) until the pin is manually moved to releasing position. In the accompanying drawings I have shown the door case or frame f provided with a spring-pressed sliding pin for this purpose. The pin Z referred to is fitted (see Figs. 3, 7, and 7 in an opening extending across the door-case, and at one end (the end to be engaged by the finger e) said pin is beveled, (see gin the drawings,) and at its other end said pin is provided with an enlargement or head 8 outside of a plate 7, secured to the door-case, and against which plate and the shoulder on the pin Z a spring 6 constantly presses in order to yieldingly project the end g of the pin in the path of the finger 6. At one end (preferably at the side of the door-case within the car) a plate y is secured .to the pin Z or connected to move the same inwardly and is provided with a knob or handle it for the hand or to be pushed and also with a pin 5 upon its rear and slidably fitted, as shown in Fig. 3, in a recess in the door-case to maintain the plate in position at all times. At the opposite side of the door-case (preferably at the outside of the car) I have shown (see especially Fig.3) a plate having lugs 9, and between these lugs I have pivoted a lever having a hooked handle i at its lower end and having its upper end behind the enlargement or head 8 of pin Z. IVhenever, therefore, the door is closed and the spindle a is turned (by either handle 0 or handle d) to lock the door, the fingerpiece will be moved against the beveled end 9 of pin Z and will force back such pin and will be then held by the latter, as shown in Fig. 1. To permit unlocking of the door, therefore, it will be necessary to move the pin Z inwardly from the path of the finger-piece e.

This may be done from the inside of the car by pressing inwardly upon knob h and forcing plate y and the end 9 of pin Z'from the finger-piece. Thereupon the handle 0 may be turned to lift the lock-bolt j from the keeper m, Fig. 1, and to slide the latch-bolt k from the keeper n. IVhen the door is to be unlocked from the outside of the car, it will be necessary to grasp the hook-handle i and by pressing such handle into the recess shown in Fig. 3 cause the upper arm of the lever engaging the enlargement or head 8 to pull the pin Z, so as to have the end 9 thereof release the finger-piece 6. Then the handle d may pe turned to operate the bolts 7' and k, as beore.

The form of my invention illustrated in Figs. 5, 6, 6 7, and 7 differs from that already described in employing a spring to throw the lock-bolt to locking position, the action of such spring being controlled by having the door in closed position or near the same. In operating the device of Figs. 1, 2, 3, 4, and 4 it is necessary to turn the handle d, e, y', v, :10, is, S, Z, 9, h, and i are the same as those already mentioned, immaterial modifications in shape being shown, and they operate as before described, excepting that the spindle a is not to be employed to put or lower the lock-bolt 1' into locking position. The form of bolt shown in the last-named illustrations is provided near one forward edge with a recess 12, and in the unlocked or retracted position (that shown in Figs. 5, 6, and 7) said recess is engaged by a spur or point of a plate 13, which is movable across the rear side of the lock-plate p. The plate 13 has a strike-plate 15 bent forwardly therefrom and held in position by a spring 17, one end of which bears against a fixed stop (at the left in Fig. 5) and the other end of which bears against an arm of the'plate 13, and the function of said spring is to normally hold the strike-plate 15 against the edge of the lockplate p and with the spur pushed into the recess 12 of the lock-bolt 7'. At one edge the lock-plate is provided with a screw 14, fitted by an opening in the strike-plate 15 and serving to guide and limit the extent of movement of the plate 13. When the door is opened, (ornot nearly closed the parts are in the positions shown in Figs. 5, 6, and 7. To throw the parts to locking position and to hold them thereat, it is necessary only to close the door by pushing or pulling the same. As the door is closed, the strike-plate is intercepted by the edge 18 of the door-case, and the plate 13 is pulled back until (see Fig. 7 the spur of said plate is drawn out of the recess 12 of lock-bolt y. Immediately said bolt is pulled (by the spring 10) from the open position (shown in Fig. 6) to the locked position (shown in Fig. 6 and sinks (see Fig. 7 into the keeper m of the door-case, locking the door firmly. The spindle a and part j are firmly secured together, and when the latter is pulled to locking position the handle 0 and finger-piece e are also pulled to the position shown in Fig. 6 and the fingerpiece first shoves back and is then engaged bythe beveled end g of a pin Z. (See Fig. 7.) To unlock the bolt 1', it will, as before described, be necessary to move and hold either part h or v) and to turn the spindle by grasping either handle 0 or d.

What I claim is 1. In a look, a lock-bolt, handles operatively connected with said bolt, a dog, connections from the lock-bolt for operating the dog, a latch-bolt provided with a part for engagement by said dog, a stop for lifting the dog from the said part of the latch-bolt, and a spring for restoring the latch-bolt.

2. In a look, a lock-bolt, handles operatively connected with said bolt, a lever movable with the lock-bolt, a dog movable with said lever, a latch-bolt provided with a part for engagement by said dog, a stop for lifting the dog from the said part of the latch-bolt, and a spring for restoring the latch-bolt.

3. In a lock, a lock-bolt, handles operatively connected with said bolt, means independently of the handles for holding said bolt to a position to which it has been thrown, a

dog, connections from the lock-bolt for operating the dog, a latch-bolt provided with a part for engagement by said dog, a stop for lifting the dog from the said part of the latchbolt, and a spring for restoring the latch-bolt.

4. In a look, a lock-bolt, handles operatively connected with said bolt, means for holding said boltin unlocking position, a spring for throwing the same to locking position, a dog, connections from the lock-bolt for operating the dog, a latch-bolt provided with a part for engagement by said dog, a stop for lifting the dog from the said part of the latch- ,bolt, and a spring for restoring the latch-bolt.

5. In a look, a lock-frame secured to adoor, a lock-bolt, carried by said frame, handles operatively connected with said bolt, a fingerpiece movable with said handles, a dog and connectionsfrom the lock-bolt the dog, a latch-bolt provided with a part for for operating engagement by said dog, a stop for lifting the dog from the said part of the latch-bolt, and a spring for restoring the latch-bolt, in combination with a door-case having keepers for' the lock-bolt and for the latch-bolt, and hav-' ing a yielding means for engaging the fingerpiece aforesaid when the lock-bolt is moved to locking position.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

LEO NEYRAT.

Witnesses EUGENE WATTIER, MAURICE Roux. 

